High-Context AI for
Domain Experts.
Domain Experts.
Custom workspaces and agents that think like you do.
For domain experts tired of re-explaining their world to every new chat.
AI is bad at context. You're not.
Your AI forgets everything. Every time. So to get good with AI you've built a teetering pile of tools and tricks for managing context —
— Re-explained your domain to a fresh chat for the hundredth time
— Pasted the same context doc before every single session
— Lost an insight because no AI remembered it existed
— Got a generic answer when you needed domain-specific depth
You're not the problem. Your tools are.
Start at square instead.
Your domain model, your documents, your accumulated thinking — already loaded. Every session starts with everything you've ever taught it.
How it works
Build your context baseline.
You've spent hours teaching ChatGPT your domain. It forgot by Tuesday. Build a high-context workspace in minutes. Your terminology. Your frameworks. Your documents, structured and compounding.
Describe
Tell Penumbra what matters in your world — the concepts you track, the relationships between them, the vocabulary only your team uses. The Shape Designer turns your mental model into a structured lens in a single conversation.
Upload
Drop in your documents — PDFs, audio, Notion pages, anything. Penumbra extracts and structures everything through the lens you just built.
Connect
Relationships surface across sources nobody read together. A decision from last quarter links to a pattern emerging now — even if you never made that connection yourself.
Compound
Ask your knowledge base a question. Get a grounded answer that reasons across everything. That's day one. Every document after that makes the next one more valuable.
You can create new lenses anytime — by conversation, not configuration. The product doesn't stop at onboarding.
FAQ
Common questions.
ChatGPT and Claude start fresh every conversation. They don't know your domain, your competitors, or what you decided last quarter. Penumbra gives AI persistent memory of your strategic context. Every session builds on everything you've ever uploaded.